Indicate a relationship between an actor and a use case

  1. In a use case diagram, drag a Communicates shape onto the drawing page.

  2. Glue one endpoint End point image, which is plus sign in a green square of the Communicates shape to a connection point Connection point image - blue X on an Actor shape. Glue the other endpoint to a connection point on a Use Case shape.

  3. If you want to add an arrow to indicate the flow of information, do the following:

    • Double-click the Communicates shape, then, under Association, click the end you want to edit, and then click Properties.

    • In the Association End category, check IsNavigable, click OK, then click OK again.

    • Right-click the Communicates shape and click Shape Display Options. Under End options, select End navigability, and then click OK.

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